® LY62W25616 256K X 16 BIT LOW POWER CMOS SRAM Rev. 1.4 REVISION HISTORY Revision Rev. 1.0 Rev. 1.1 Rev. 1.2 Rev. 1.3 Rev. 1.4 Description Initial Issue Revised FEATURES & ORDERING INFORMATION Lead free and green package available to Green package available Added packing type in ORDERING INFORMATION Deleted TSOLDER in ABSOLUTE MAXIMUN RATINGS Revised PACKAGE OUTLINE DIMENSION in page 10 Revised VIH to 0.7*Vcc Revised VDR to 1.5V Revised ORDERING INFORMATION in page 11 Added SL Grade Deleted E Grade Revised ISB1/IDR Revised “Standby Power Supply Current” in page 3 Revised “Data Retention Current” in page 8 Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan. TEL: 886-3-6668838 FAX: 886-3-6668836 0 Issue Date Mar.21.2008 May.7.2010 Aug.25.2010 Aug.9.2011 April.30.2012 ® LY62W25616 256K X 16 BIT LOW POWER CMOS SRAM Rev. 1.4 FEATURES GENERAL DESCRIPTION Fast access time : 55/70ns Low power consumption: Operating current : 30/20mA (TYP.) Standby current : 4μA (TYP.) LL-version 3μA (TYP.) SL-version Single 2.7V ~ 5.5V power supply All outputs TTL compatible Fully static operation Tri-state output Data byte control : LB# (DQ0 ~ DQ7) UB# (DQ8 ~ DQ15) Data retention voltage : 1.5V (MIN.) Green package available Package : 44-pin 400 mil TSOP-II 48-ball 6mm x 8mm TFBGA The LY62W25616 is a 4,194,304-bit low power CMOS static random access memory organized as 262,144 words by 16 bits. It is fabricated using very high performance, high reliability CMOS technology. Its standby current is stable within the range of operating temperature. The LY62W25616 is well designed for low power application, and particularly well suited for battery back-up nonvolatile memory application. The LY62W25616 operates from a single power supply of 2.7V ~ 5.5V and all inputs and outputs are fully TTL compatible PRODUCT FAMILY Product Family LY62W25616 LY62W25616(I) Operating Temperature 0 ~ 70℃ -40 ~ 85℃ Vcc Range Speed 2.7 ~ 5.5V 2.7 ~ 5.5V 55/70ns 55/70ns FUNCTIONAL BLOCK DIAGRAM PIN DESCRIPTION Vcc Vss A0-A17 DQ0-DQ7 Lower Byte DQ8-DQ15 Upper Byte CE# WE# OE# LB# UB# Power Dissipation Standby(ISB1,TYP.) Operating(Icc,TYP.) 4µA(LL)/3µA(SL) 30/20mA 4µA(LL)/3µA(SL) 30/20mA SYMBOL DESCRIPTION A0 - A17 Address Inputs DQ0 – DQ15 Data Inputs/Outputs DECODER I/O DATA CIRCUIT 256Kx16 MEMORY ARRAY CE# Chip Enable Input WE# Write Enable Input OE# Output Enable Input LB# Lower Byte Control UB# Upper Byte Control VCC Power Supply VSS Ground COLUMN I/O CONTROL CIRCUIT Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan. TEL: 886-3-6668838 FAX: 886-3-6668836 1 ® LY62W25616 Rev. 1.4 256K X 16 BIT LOW POWER CMOS SRAM PIN CONFIGURATION TFBGA(Top View) ABSOLUTE MAXIMUN RATINGS* PARAMETER Voltage on VCC relative to VSS Voltage on any other pin relative to VSS Operating Temperature Storage Temperature Power Dissipation DC Output Current SYMBOL VT1 VT2 TA TSTG PD IOUT RATING -0.5 to 6.5 -0.5 to VCC+0.5 0 to 70(C grade) -40 to 85(I grade) -65 to 150 1 50 UNIT V V ℃ ℃ W mA *Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to the absolute maximum rating conditions for extended period may affect device reliability. Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan. TEL: 886-3-6668838 FAX: 886-3-6668836 2 ® LY62W25616 256K X 16 BIT LOW POWER CMOS SRAM Rev. 1.4 TRUTH TABLE MODE Standby Output Disable Read Write Note: CE# OE# H X L L L L L L L L X X H H L L L X X X WE# LB# X X H H H H H L L L X H L X L H L L H L UB# X H X L H L L H L L I/O OPERATION DQ0-DQ7 DQ8-DQ15 High – Z High – Z High – Z High – Z High – Z High – Z High – Z High – Z High – Z DOUT DOUT High – Z DOUT DOUT DIN High – Z DIN High – Z DIN DIN SUPPLY CURRENT ISB1 ICC,ICC1 ICC,ICC1 ICC,ICC1 H = VIH, L = VIL, X = Don't care. DC ELECTRICAL CHARACTERISTICS SYMBOL TEST CONDITION MIN. PARAMETER Supply Voltage VCC 2.7 *1 Input High Voltage VIH 0.7*VCC *2 Input Low Voltage VIL - 0.2 Input Leakage Current ILI VCC ≧ VIN ≧ VSS -1 Output Leakage VCC ≧ VOUT ≧ VSS, -1 ILO Output Disabled Current Output High Voltage VOH IOH = -1mA 2.4 Output Low Voltage VOL IOL = 2mA Cycle time = Min. - 55 ICC CE# = VIL , II/O = 0mA - 70 Other pins at VIL or VIH Average Operating Power supply Current Cycle time = 1µs ICC1 CE# = 0.2V , II/O = 0mA Other pins at 0.2V or VCC - 0.2V LL/LLI CE# ≧VCC - 0.2V *5 25℃ Standby Power SL Others at 0.2V or ISB1 *5 Supply Current SLI 40℃ VCC - 0.2V SL/SLI Notes: 1. VIH(max) = VCC + 3.0V for pulse width less than 10ns. 2. VIL(min) = VSS - 3.0V for pulse width less than 10ns. 3. Over/Undershoot specifications are characterized, not 100% tested. 4. Typical values are included for reference only and are not guaranteed or tested. Typical values are measured at VCC = VCC(TYP.) and TA = 25℃ 5. This parameter is measured at VCC = 3.0V Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan. TEL: 886-3-6668838 FAX: 886-3-6668836 3 TYP. 3.0 - *4 MAX. 5.5 VCC+0.3 0.6 1 UNIT V V V µA - 1 µA 2.7 - 0.4 V V 30 60 mA 20 50 mA 4 10 mA 4 3 3 3 50 10 10 25 µA µA µA µA ® LY62W25616 256K X 16 BIT LOW POWER CMOS SRAM Rev. 1.4 CAPACITANCE (TA = 25℃, f = 1.0MHz) PARAMETER Input Capacitance Input/Output Capacitance SYMBOL CIN CI/O MIN. MAX 6 8 - UNIT pF pF Note : These parameters are guaranteed by device characterization, but not production tested. AC TEST CONDITIONS Input Pulse Levels Input Rise and Fall Times Input and Output Timing Reference Levels Output Load 0.2V to VCC - 0.2V 3ns 1.5V CL = 30pF + 1TTL, IOH/IOL = -1mA/2mA AC ELECTRICAL CHARACTERISTICS (1) READ CYCLE PARAMETER Read Cycle Time Address Access Time Chip Enable Access Time Output Enable Access Time Chip Enable to Output in Low-Z Output Enable to Output in Low-Z Chip Disable to Output in High-Z Output Disable to Output in High-Z Output Hold from Address Change LB#, UB# Access Time LB#, UB# to High-Z Output LB#, UB# to Low-Z Output (2) WRITE CYCLE PARAMETER Write Cycle Time Address Valid to End of Write Chip Enable to End of Write Address Set-up Time Write Pulse Width Write Recovery Time Data to Write Time Overlap Data Hold from End of Write Time Output Active from End of Write Write to Output in High-Z LB#, UB# Valid to End of Write SYM. tRC tAA tACE tOE tCLZ* tOLZ* tCHZ* tOHZ* tOH tBA tBHZ* tBLZ* SYM. tWC tAW tCW tAS tWP tWR tDW tDH tOW* tWHZ* tBW LY62W25616-55 MIN. MAX. 55 55 55 30 10 5 20 20 10 55 25 10 - LY62W25616-70 MIN. MAX. 70 70 70 35 10 5 25 25 10 70 30 10 - UNIT LY62W25616-55 MIN. MAX. 55 50 50 0 45 0 25 0 5 20 45 - LY62W25616-70 MIN. MAX. 70 60 60 0 55 0 30 0 5 25 60 - UNIT *These parameters are guaranteed by device characterization, but not production tested. Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan. TEL: 886-3-6668838 FAX: 886-3-6668836 4 ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ® LY62W25616 256K X 16 BIT LOW POWER CMOS SRAM Rev. 1.4 TIMING WAVEFORMS READ CYCLE 1 (Address Controlled) (1,2) tRC Address tAA Dout tOH Previous Data Valid Data Valid READ CYCLE 2 (CE# and OE# Controlled) (1,3,4,5) tRC Address tAA CE# tACE LB#,UB# tBA OE# tOE tOH tOHZ tBHZ tCHZ tOLZ tBLZ tCLZ Dout High-Z Data Valid High-Z Notes : 1.WE#is high for read cycle. 2.Device is continuously selected OE# = low, CE# = low, LB# or UB# = low. 3.Address must be valid prior to or coincident with CE# = low, LB# or UB# = low transition; otherwise tAA is the limiting parameter. 4.tCLZ, tBLZ, tOLZ, tCHZ, tBHZ and tOHZ are specified with CL = 5pF. Transition is measured ±500mV from steady state. 5.At any given temperature and voltage condition, tCHZ is less than tCLZ , tBHZ is less than tBLZ, tOHZ is less than tOLZ. Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan. TEL: 886-3-6668838 FAX: 886-3-6668836 5 ® LY62W25616 256K X 16 BIT LOW POWER CMOS SRAM Rev. 1.4 WRITE CYCLE 1 (WE# Controlled) (1,2,3,5,6) tWC Address tAW CE# tCW tBW LB#,UB# tAS tWP tWR WE# tWHZ Dout TOW High-Z (4) tDW (4) tDH Data Valid Din WRITE CYCLE 2 (CE# Controlled) (1,2,5,6) tWC Address tAW CE# tAS tWR tCW tBW LB#,UB# tWP WE# tWHZ Dout High-Z (4) tDW tDH Data Valid Din Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan. TEL: 886-3-6668838 FAX: 886-3-6668836 6 ® LY62W25616 256K X 16 BIT LOW POWER CMOS SRAM Rev. 1.4 WRITE CYCLE 3 (LB#,UB# Controlled) (1,2,5,6) tWC Address tAW tWR CE# tAS tCW tBW LB#,UB# tWP WE# tWHZ Dout High-Z (4) tDW tDH Data Valid Din Notes : 1.WE#,CE#, LB#, UB# must be high during all address transitions. 2.A write occurs during the overlap of a low CE#, low WE#, LB# or UB# = low. 3.During a WE# controlled write cycle with OE# low, tWP must be greater than tWHZ + tDW to allow the drivers to turn off and data to be placed on the bus. 4.During this period, I/O pins are in the output state, and input signals must not be applied. 5.If the CE#, LB#, UB# low transition occurs simultaneously with or after WE# low transition, the outputs remain in a high impedance state. 6.tOW and tWHZ are specified with CL = 5pF. Transition is measured ±500mV from steady state. Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan. TEL: 886-3-6668838 FAX: 886-3-6668836 7 ® LY62W25616 256K X 16 BIT LOW POWER CMOS SRAM Rev. 1.4 DATA RETENTION CHARACTERISTICS PARAMETER VCC for Data Retention Data Retention Current Chip Disable to Data Retention Time Recovery Time tRC* = Read Cycle Time SYMBOL TEST CONDITION VDR CE# ≧ VCC - 0.2V LL/LLI VCC = 1.5V SL 25℃ CE# ≧ VCC - 0.2V IDR SLI 40℃ Others at 0.2V or VCC-0.2V SL/SLI See Data Retention tCDR Waveforms (below) tR MIN. 1.5 - TYP. 2 2 2 2 MAX. 5.5 30 8 8 23 UNIT V µA µA µA µA 0 - - ns tRC* - - ns DATA RETENTION WAVEFORM Low Vcc Data Retention Waveform (1) (CE# controlled) VDR ≧ 1.5V Vcc Vcc(min.) Vcc(min.) tCDR CE# VIH tR VIH CE# ≧ Vcc-0.2V Low Vcc Data Retention Waveform (2) (LB#, UB# controlled) VDR ≧ 1.5V Vcc Vcc(min.) Vcc(min.) tCDR LB#,UB# VIH tR LB#,UB# ≧ Vcc-0.2V VIH Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan. TEL: 886-3-6668838 FAX: 886-3-6668836 8 ® LY62W25616 256K X 16 BIT LOW POWER CMOS SRAM Rev. 1.4 PACKAGE OUTLINE DIMENSION 44-pin 400mil TSOP-Ⅱ Package Outline Dimension SYMBOLS A A1 A2 b c D E E1 e L ZD y Θ DIMENSIONS IN MILLMETERS MIN. NOM. MAX. 1.20 0.05 0.10 0.15 0.95 1.00 1.05 0.30 0.45 0.12 0.21 18.212 18.415 18.618 11.506 11.760 12.014 9.957 10.160 10.363 0.800 0.40 0.50 0.60 0.805 0.076 o o o 3 6 0 DIMENSIONS IN MILS MIN. NOM. MAX. 47.2 2.0 3.9 5.9 37.4 39.4 41.3 11.8 17.7 4.7 8.3 717 725 733 453 463 473 392 400 408 31.5 15.7 19.7 23.6 31.7 3 o o o 0 3 6 Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan. TEL: 886-3-6668838 FAX: 886-3-6668836 9 ® LY62W25616 Rev. 1.4 256K X 16 BIT LOW POWER CMOS SRAM 48-ball 6mm × 8mm TFBGA Package Outline Dimension Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan. TEL: 886-3-6668838 FAX: 886-3-6668836 10 ® LY62W25616 Rev. 1.4 256K X 16 BIT LOW POWER CMOS SRAM ORDERING INFORMATION Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan. TEL: 886-3-6668838 FAX: 886-3-6668836 11 ® LY62W25616 Rev. 1.4 256K X 16 BIT LOW POWER CMOS SRAM THIS PAGE IS LEFT BLANK INTENTIONALLY. Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan. TEL: 886-3-6668838 FAX: 886-3-6668836 12